US2432866A - Saw holder - Google Patents

Description

Dec. 16, 1947. R. Dow 2,432,866

' SAWHOLDER Filed April 7, 1944 GEVENTOR. EHYMOIVD DOW BY gt Patented Dec. 16, 1947 UNITED STATES RATENT OFFICE SAW HOLDER Raymond now, mashing, N. Y. Application A'pril 7, 1944;Serial No. 529,928

5 Claims. (01. 145-4083 This invention relates to saws and in particular toa saw construction of simple form and one that lends itself to universal use, the structure being applicable particularly to hack saws.

-A particular -bject'of the invention is to provide ahandle and saw holder gripping means that permits the blade to be inserted quickly and adjusted to any angle in rotary direction, the handle and gripping feature permitting the angular-disposition of the saw blade at any horizontal angle desired. .Further objects of the invention provide for the use of a blade stifiener which,--wlth the b1ade"may be securely gripped in -the handle and may hold the blade rigid in either straight or curved shape to do work that might require the use of a curved blade. The partsof the device are of simple construction and lend themselves to rapid adjustment, quick dismantling for replacement and universal adjustment. The saw holder is sturdy inconstruction and may be used to hold any type saw blade de sired, so that metal saws or wood saws can be interchangeably employed.

With these and other objects in View, the invention comprises certainconstru'ctions hereinafter described and then particularly pointed out in the claims and a preferred embodiment of.1my invention. is illustrated in the accompanying. drawing,'in which: 7.. y.

Figure 1 is a view in side elevation of a saw holder and saw combinations constructed in accordance with my invention,

Figure 2 is a slightly enlarged view in front elevation; of the saw construction shown in Fig ure 1,

Figure 3 is a view in perspective showing the split clamping barrel employed in retaining the blade in rotatably adjustable position in the han- Figure 4 is a view in perspective of the saw blade stiffener, the straight form being shown in full lines and the curved form being illustrated in outline,

rounded on their upper end and On the inside faces are arcuately shaped as at lento engage the sides of the tubular sleeved part: [5 of the clampelt. The space between the jaws, l3 permits clamping action of the jaws so that they cangrip and hold the depending tabs I! on the clamp It. The clamp I6 is of metal and tempered to provide the necessary resilience for securely gripping the split barrel parts [9 which fit into the sleeved portion [5 of said clamp, when the 7 pressure of a wing nut I8 is exerted to draw the radial ridges 2| for stiffening and adjustment between the jaws 13, as said ridges will be gripped by-the inner surfaces of the jaws l3 to hold the clamp in any adjusted position relative to a hori-; zontal plane. 1

The split barrel parts iii are each provided with a shouldered recess 22 for supporting the depending-flangededgesfl of a blade stiffener 24 which is closely fitted to the upper edge of the; saw blade 25 and holds thelatter-in straight or curved position-depending upon the work to be done.- Itis understood that different shapes of stiffeners may be employed and slipped on to the saw blade as required when the parts are released from between the split barrel parts- H! by.

l the-release of 'the wingnut. In holding the barrel pieces I9 in the sleeved portion of the clamp, I have found that by also gripping the sides of the sleeved portion l5 with-the upper. innerarcuate edges of the jaws l3, the tightening of the wing nut not only gives a clamping action in the tab portions of the clamp to effectively hold the barrel pieces tightly gripping the blade and stiffener, but the wedging action of the arcuate edges of the handle will more effectively tighten the clamping sleeve about the barrel pieces and prevent slippage of the blade which might do damage to the individual using the saw.

The shouldered recesses 22 of the barrel pieces l9 may be varied in depth to accommodate a stifiener of the type shown in Figure 6, in which one of the depending fianged edges 21 of the U-shaped blade stiffener 28 is longer than the flange on the opposite side of the blade. In this instance, the upper ends of the bifurcated section 29 of the handle 36, which are drawn into clamping relation with the clamp 3| by the bolt and wing nut combination 32, are provided on the interior surfaces with sleeve seating troughs or hollows 33 which engage the opposite sides of the sleeve 34 that forms the upper portion of clamp 3| and encompasses the barrel parts. This double clamping action secures the blade in the holder and prevents accidental loosening of the parts.

In order to adjust the blade in any rotary direction as shown in Figure 6, the thumb nut is released and the blade revolved with the split barrel to the desired position. The blade can be tilted to any horizontal angle by the same proce dure and a combination of rotary and planary adjustment will give a universal adjustment of the blade relatively to the handle, so that work may be done in confined spaces where the position of the handle cannot always be adjusted to properly position the blade for sawing action.

My invention is not to be restricted to the precise details of construction shown since various changes and modifications may be made therein without departing from the scope of the invention or sacrificing the advantages derived from its use.

What I claim is:

1. In a saw holder, in combination, separate clamping barrel members for holding a saw blade therebetween, a clamp having a flexible sleeve portion in which the barrel members are supported in blade engaging relation and for rotary movement, depending tabs on said clamp, a handle presenting arcuate jaw portions for receiving said tabs and means associated with said handle and tabs for uniting the handle, jaw portions and clamp in adjusted gripping relation.

2. In a saw holder, in combination, separate clamping barrel members arranged to grip and hold a saw blade therebetween, a clamp presenting a flexible sleeve portion for receiving said barrel members, depending tabs on said clamp, a handle having a bifurcated end in which said tabs fit, the upper ends of the bifurcation abutting said sleeve portion, and a single means associated with the handle and the tabs for adjustably securing the latter to cause the sleeve to grip the barrel members and in adjusted position relative to said handle.

3. In a saw holder, in combination, clamping barrel members arranged to grip and hold a saw blade therebetween, said barrel members having recessed portions, 9, blade stiffener supported in said recesses for holding the blade in desired shape, a clamp presenting a sleeve portion and opposed tab sections, a handle presenting a body portion and upper bifurcated terminal ends between the latter of which the said tab portions fit,

means passing through the handle and the tab portions for adjustably securing the clamp to the handle, said means causing the tabs to close to tighten the grip of the sleeve about the said barrel members disposed therein, and the inner surfaces of said terminal ends being shaped to engage said clamp sleeve portion.

4. In a saw holder, in combination, separate clamping barrel members arranged to grip and hold between them a saw blade, a blade stiffener channelled to fit closely over the upper edge of the saw blade substantially coextensive therewith and arranged to be gripped and held between the barrel members, a flexible clamp in which said barrel members and stiffener are mounted for rotary adjusting movement, a handle for the clamp, and a single screw means for securing the clamp in adjusted position to the handle and actuating the clamp to grip said barrel members and said stiffener.

5. In a saw holder, in combination, clamping barrel members having recesses formed in the clamping faces thereof, a saw blade, a blade stiffener substantially coextensive with the blade and engaging the upper opposite side edges thereof, a flexible clamp for adjustably supporting said clamping barrel members whereby the stiffener seated in said recesses is clamped with said blade between the barrel members, a handle for the clamp, means for adjustably securing said clamp and handle together, and said handle, flexible clamp and the means for adjustably securing the clamp and handle together cooperating to clamp the barrel members together.

RAYMOND DOW.

REFERENCES CH'EED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 703,538 Cartwright July 1, 1902 2,307,411 Leatherman Jan. 5, 1943 1,726,241 Schubert Aug. 27, 1929 139,284 Walker May 27, 1873 2,286,530 Fordon June 16, 1942 1,905,482 Magri Apr. 25, 1933 FOREIGN PATENTS Number Country Date 15,547 Great Britain Nov. 29, 1886

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